new style tactical 6'' inch 13 slots black picatinny moe rail sections for 21mm rail weaver mount system ing

aluminum alloy - 21mm picatinny rail tactical flashlight scope mount rail easy to install - includes all necessary screws and locking nuts, as well as a l hex key for easy installation universal system - mil-spec 13-slot picatinny rail section fully compatible with any key mod handguard mougntin sytstem syste mil-spec 13-slot picatinny rail section fully compatible with any keymod handguard mougntin system